using System;

​

public class Program

{

    public static void Main()

    {

        string str = Console.ReadLine();

        int br=0;

        for (int i=0; i< str.Length;i++) 

        {

            if (str[i]>='A' && str[i]<='Z' || str[i]>='А'  && str[i]<='Я') 

            {

                br++;

            }

        }

        Console.WriteLine(br);

    }

}